Secure IP: 9.9.9.9 , Blocklist, DNSSEC, No EDNS Client-Subnet
Unsecure IP: 9.9.9.10 , No blocklist, no DNSSEC, send EDNS Client-Subnet
Secure IPv6: 2620:fe::fe , Blocklist, DNSSEC, No EDNS Client-Subnet
Unsecure IPv6: 2620:fe::10 , No blocklist, no DNSSEC, send EDNS Client-Subnet
More information about Quad9 https://www.quad9.net